add data in a way that it matches customer key
Please expand on the above.
Giving you the real scenario. I have table which contains customer information such as name, address, email address etc. What I need to do is I need to add 2 more columns (education and race). We pull the data the website and now I need to make sure that the education and race data is getting stored properly. For example There is a customer Name John Travolta and his education is Master in CIS and he is white. How do I store those values for let's say 1.5 customers? So when we pull the data for a customer, we have all the information. Does it make sense?
Sure it makes sense. But which bit do you require assistance with?
1) How to add columns to tables?
2) How to populate columns from data held in other tables?
3) How to transfer data from a web form to a SQL Server database table?
If you haven't even tried to resolve your issue, please don't expect the hard-working volunteers here to waste their time providing links to answers which you could easily have found yourself.